CN211777280U

CN211777280U - Gas drainage down-hole drilling and cleaning device

Info

Publication number: CN211777280U
Application number: CN202020295803.5U
Authority: CN
Inventors: 吴昌
Original assignee: Shaanxi Changwu Tingnan Coal Industry Co Ltd
Current assignee: Shaanxi Changwu Tingnan Coal Industry Co Ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-10-27
Anticipated expiration: 2030-03-11

Abstract

The utility model belongs to the technical field of gas drainage, especially, be a clear hole device of gas drainage down-hole, including pipe and probing circle of going down, probing circle bottom surface fixedly connected with a plurality of drill bit that distribute annularly, the quantity of pipe of going down has a plurality of, adjacent two the pipe of going down passes through connecting ring fixed connection, the bottom of the pipe of going down of the lowest with probing circle fixed connection, attract hole one end to set up a plurality of jet orifices that distribute annularly, the connecting ring inside have with attract the transition hole that the hole is linked together; pass mounting hole and down pipe fixed connection with the screw through the mounting groove, make the clamping ring play fixed between two down pipes through this mode, two down pipes are unanimous with the clamping ring external diameter, when making the clamping ring can not play the hindrance effect to down descending of pipe, down pipe can select a plurality of down pipe cooperations according to descending degree of depth to be suitable for the gas exploitation of the different degree of depth.

Description

Gas drainage down-hole drilling and cleaning device

Technical Field

The utility model belongs to the technical field of gas drainage, concretely relates to clear hole device of gas drainage down drilling.

Background

The analysis of coal mine accidents causes that about half of coal mine accidents are caused by gas, in coal mine engineering, only gas in a mine is extracted first, so that the disaster of the gas in the mine is fundamentally avoided, the safe extraction of the coal in the coal mine can be ensured, an inevitable process is drilling when the gas is extracted, and the foundation that the gas is extracted smoothly is avoided when all accidents occur in the drilling process.

The chinese patent discloses a clear hole device of gas drainage down drilling, its publication is (CN209687418U), the setting can be dismantled to the pipe of taking out in the middle of this patent technology drilling, conveniently dismantle the clearance, and take out and be provided with the drill bit all around of pipe, conveniently down carry out the weight of boring, the condition of sticking the brill that significantly reduces at the extraction in-process, however, because gas drainage often is located under the ground, and need insert the darker position in ground, the settlement of single section pipe does not satisfy the demand of in-service use this moment, consequently, need a clear hole device of drilling that is applicable to the different degree of depth.

Therefore, the technical personnel in the field provide a gas extraction down-hole drilling and hole cleaning device to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a clear hole device of gas drainage down drilling has the characteristics that the multisection installation is applicable to the different degree of depth.

In order to achieve the above object, the utility model provides a following technical scheme: a gas extraction down-hole cleaning device comprises down-tubes and a drilling ring, wherein a plurality of drill bits distributed in an annular mode are fixedly connected to the bottom surface of the drilling ring, the number of the down-tubes is multiple, two adjacent down-tubes are fixedly connected through a connecting ring, the bottom end of the down-tube at the lowest position is fixedly connected with the drilling ring, a suction hole is formed in each down-tube, a plurality of jet holes distributed in an annular mode are formed in one end of the suction hole, a suction transition hole communicated with the suction hole is formed in each connecting ring, a plurality of jet transition holes matched with the jet holes are formed in the outer wall of each connecting ring, a plurality of threaded holes distributed in an annular mode are formed in each of the two ends of each down-tube, the threaded holes in the two ends of each down-tube are distributed in a staggered mode, and a plurality of mounting holes matched with the threaded holes are formed in the upper end surface and the lower, the outer wall of the connecting ring is provided with a mounting groove communicated with the mounting hole, a screw is mounted in the mounting groove, the drilling ring is close to one end of the drill bit and is provided with a plurality of injection tail holes matched with the injection holes, and the drilling ring is close to one end of the drill bit and is provided with a plurality of fixing holes matched with the screwing holes.

Preferably, the upper end and the lower end of the injection transition hole are both provided with an insertion groove, the two ends of the downlink pipe are both fixedly connected with insertion pipes matched with the insertion grooves, and the insertion pipes are located outside the injection holes.

Preferably, the height of the mounting groove is greater than the length of the screw.

Preferably, the mounting groove is trapezoidal along the slope shape of the axial direction of the connecting ring.

Preferably, both ends of the fixing hole are open structures.

Preferably, one end of the fixing hole, which is close to the drill bit, is provided with a sealing plug.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses well downlink sets up a plurality ofly, a plurality of downlinks are direct to be connected through the clamping ring, the mounting groove has been seted up to the clamping ring outer wall, pass mounting hole and downlink fixed connection with the screw through the mounting groove, it is fixed between two downlinks to make the clamping ring play through this mode, and two downlinks are unanimous with the clamping ring external diameter, thereby when making the clamping ring can not play the hindrance effect to downlink of downlinks, make the downlinks can select a plurality of downlinks cooperation according to down the degree of depth, thereby be suitable for the gas exploitation of the different degree of depth.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a perspective view of the connecting ring of the present invention;

fig. 4 is a schematic top sectional view of the connecting ring of the present invention;

fig. 5 is a perspective view of the drilling collar of the present invention.

In the figure: 1. a down pipe; 11. a suction hole; 12. an injection hole; 121. inserting a pipe; 13. screwing holes; 2. a connecting ring; 21. a suction transition hole; 22. spraying a transition hole; 221. inserting grooves; 23. mounting holes; 24. mounting grooves; 3. drilling a circle; 31. a drill bit; 32. a spray tail hole; 33. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: a gas extraction down-hole cleaning device comprises down pipes 1 and a drilling ring 3, wherein the bottom surface of the drilling ring 3 is fixedly connected with a plurality of drill bits 31 which are distributed annularly, the number of the down pipes 1 is a plurality, two adjacent down pipes 1 are fixedly connected through a connecting ring 2, the bottom end of the lowest down pipe 1 is fixedly connected with the drilling ring 3, the down pipe 1 is internally provided with a suction hole 11, one end of the suction hole 11 is provided with a plurality of jet holes 12 which are distributed annularly, the connecting ring 2 is internally provided with a suction transition hole 21 which is communicated with the suction hole 11, the outer wall of the connecting ring 2 is provided with a plurality of jet transition holes 22 which are matched with the jet holes 12, the two ends of the down pipe 1 are respectively provided with a plurality of screwed holes 13 which are distributed annularly, the screwed holes 13 at the two ends of the down pipe 1 are distributed in a staggered manner, the upper end surface and the lower end surface of the connecting ring 2 are respectively, the outer wall of the connecting ring 2 is provided with a mounting groove 24 communicated with the mounting hole 23, a screw is mounted in the mounting groove 24, one end of the drilling ring 3 close to the drill bit 31 is provided with a plurality of injection tail holes 32 matched with the injection holes 12, and one end of the drilling ring 3 close to the drill bit 31 is provided with a plurality of fixing holes 33 matched with the screwing holes 13.

In this embodiment: the number of the down pipes 1 is several, several down pipes 1 are fixedly connected through the connection ring 2, so that the whole length of the down pipe 1 is increased, the drilling ring 3 is fixedly connected to the bottom of the down pipe 1, the speed of excavating and drilling can be increased by the plurality of drill bits 31 at one end of the drilling ring 3, when the drilling depth is increased, a lot of drilling debris can be generated, the drilling debris is sucked to the outside through the suction hole 11, meanwhile, the injection hole 12 is hermetically connected with an external water source supply mechanism, high-pressure water is injected on a cutting surface through the injection hole 12 and the injection transition hole 22 and then the injection tail hole 32, and is sucked out through the suction hole 11, so that the purpose of emptying the drilled hole is completed, during installation, only the connection ring 2 is required to be placed at the installation end of the down pipe 1, and then a screw is inserted into the installation hole 23 through the installation groove 24, so that the screw is fixed with the screw connection hole 13 of the down pipe 1 through the, make the clamping ring 2 play the fixed between two down pipes 1 through this mode to two down pipes 1 are unanimous with 2 external diameters of clamping ring, thereby make clamping ring 2 can not play the hindrance effect down to down pipe 1 in, make down pipe 1 can select a plurality of down pipes 1 cooperation according to down degree of depth, thereby be suitable for the gas exploitation of the different degree of depth.

In fig. 2: the inserting groove 221 has been all seted up to the lower extreme on spraying transition hole 22, and the equal fixedly connected with in the equal both ends of downgoing pipe 1 is managed 121 with inserting groove 221 complex inserting, and inserting pipe 121 is located spray hole 12 outsidely, through inserting pipe 121 and inserting groove 221's cooperation, makes spraying transition hole 22 and spray hole 12 can counterpoint fast, improves butt joint speed.

In fig. 3: the height of the mounting groove 24 is greater than the length of the screw, and the screw needs to be mounted in the mounting groove 24 through the mounting groove 24, so that the mounting of the screw is easier and more convenient due to the fact that the height of the mounting groove 24 is greater than the length of the mounting screw.

In fig. 4: the mounting groove 24 is trapezoidal along the 2 axial slope surface shapes of the connecting ring, and because an operator needs to use a mounting tool to drive the screw to rotate, the open end of the trapezoidal mounting groove 24 is large, so that the angle change of the tool is increased, and the mounting speed is increased.

In fig. 5: fixed orifices 33 both ends are open structure, and fixed orifices 33 are close to drill bit 31 one end and are provided with to seal up and block up, and the screw passes fixed orifices 33 and spiro union hole 13 fixed connection, can prevent that earth from blockking up fixed orifices 33 through the shutoff stopper to it is more light convenient when the screw later stage changes.

The utility model discloses a theory of operation and use flow: the number of the down pipes 1 is several, several down pipes 1 are fixedly connected through the connection ring 2, so that the whole length of the down pipe 1 is increased, the drilling ring 3 is fixedly connected to the bottom of the down pipe 1, the speed of excavating and drilling can be increased by the plurality of drill bits 31 at one end of the drilling ring 3, when the drilling depth is increased, a lot of drilling debris can be generated, the drilling debris is sucked to the outside through the suction hole 11, meanwhile, the injection hole 12 is hermetically connected with an external water source supply mechanism, high-pressure water is injected on a cutting surface through the injection hole 12 and the injection transition hole 22 and then the injection tail hole 32, and is sucked out through the suction hole 11, so that the purpose of emptying the drilled hole is completed, during installation, only the connection ring 2 is required to be placed at the installation end of the down pipe 1, and then a screw is inserted into the installation hole 23 through the installation groove 24, so that the screw is fixed with the screw connection hole 13 of the down pipe 1 through the, make the clamping ring 2 play the fixed between two down pipes 1 through this mode to two down pipes 1 are unanimous with 2 external diameters of clamping ring, thereby make clamping ring 2 can not play the hindrance effect down to down pipe 1 in, make down pipe 1 can select a plurality of down pipes 1 cooperation according to down degree of depth, thereby be suitable for the gas exploitation of the different degree of depth.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a clear hole device of gas drainage down drilling, includes down pipe (1) and probing circle (3), drill bit (31) that a plurality of annular distributes, its characterized in that of probing circle (3) bottom surface fixedly connected with: the number of the downers (1) is several, two adjacent downers (1) are fixedly connected through a connecting ring (2), and the bottom end of the downer (1) at the lowest position is fixedly connected with the drilling ring (3);

the descending tube (1) is internally provided with a suction hole (11), one end of the suction hole (11) is provided with a plurality of jet holes (12) which are distributed annularly, the connecting ring (2) is internally provided with a suction transition hole (21) which is communicated with the suction hole (11), and the outer wall of the connecting ring (2) is provided with a plurality of jet transition holes (22) which are matched with the jet holes (12);

the two ends of the down pipe (1) are respectively provided with a plurality of threaded holes (13) which are distributed annularly, the threaded holes (13) at the two ends of the down pipe (1) are distributed in a staggered manner, the upper end face and the lower end face of the connecting ring (2) are respectively provided with a plurality of mounting holes (23) which are matched with the threaded holes (13), the outer wall of the connecting ring (2) is provided with a mounting groove (24) which is communicated with the mounting holes (23), and screws are mounted in the mounting grooves (24);

the drilling ring (3) is close to one end of the drill bit (31) and is provided with a plurality of injection tail holes (32) matched with the injection holes (12), and the drilling ring (3) is close to one end of the drill bit (31) and is provided with a plurality of fixing holes (33) matched with the threaded holes (13).

2. The gas extraction downward borehole hole cleaning device according to claim 1, characterized in that: inserting grooves (221) are formed in the upper end and the lower end of the injection transition hole (22), inserting pipes (121) matched with the inserting grooves (221) are fixedly connected to the two ends of the descending pipe (1), and the inserting pipes (121) are located outside the injection holes (12).

3. The gas extraction downward borehole hole cleaning device according to claim 1, characterized in that: the height of the mounting groove (24) is greater than the length of the screw.

4. The gas extraction downward borehole hole cleaning device according to claim 1, characterized in that: the mounting groove (24) is trapezoidal along the axial slope shape of the connecting ring (2).

5. The gas extraction downward borehole hole cleaning device according to claim 1, characterized in that: the two ends of the fixing hole (33) are open structures.

6. The gas extraction downward borehole hole cleaning device according to claim 1, characterized in that: one end of the fixing hole (33) close to the drill bit (31) is provided with a sealing plug.